GTAC Observation Log 1. Date : 15/10/2010 2. Observation Sr. No. : 5063 3. Observer : Sandeep S. Borgaonkar 4. Observer's Email : ssborgaonkar@tifr.res.in,ojha@tifr.res.in 5. Project Name : High angular resolution radio study of Galactic star forming regions 6. Project Code : 19_026 7. Operator(s) : Navanath, Rupsingh, 8. Command File : /odisk/gtac/cmd/19_026/obs.cmd 9. LTA/LTB File : /rawdata/15oct/19_026_15oct2010.lta, /rawdata1/15oct/19_026_15oct2010.ltb, /gsbifrdata/15oct/19_026_15oct2010_gsb.lta 10. GSB File : 11. LogFlag File : /odisk/online1/logflags/19_026.FLAGS ANTENNA SETTINGS : 12. RF Freq(MHz) & Solar Attn(dB)- RF1 : 1280 MHz ,RF2 : 1280 MHz, SA1 : 0 dB, SA2 : 0 dB 13. Ist LO (MHz) & IVth LO (MHz) : ILO1 : 1210 MHz, ILO2 : 1210 MHz, IVLO1 : 70 MHz, IVLO2 : 70 MHz 14. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 14+10 dB, 32 MHz,OFF, IF-CH2 : 14+10 dB, 32 MHz,OFF 15. BB BW(KHz) & BB ALC : 16000 KHz, OFF CORRELATOR SETTINGS : GHB Settings : 16. GHB Channels : 0:127:1 17. Correlator Mode : IndianPolar 18. Frequency Parameters (TPA) : 1280 1280 1210 1210 70 70 GSB Settings : 19. Maximum Channels : 512 20. Final Bandwidth (MHz): OFF MHz; Steps : 0 21. IFBW : LO5(MHz) : 32:149-156 MHz 22. Stokes : Total_Intensity 23. Beam - 1 : OFF 24. Beam - 2 : OFF 25. Integration Time : 128 LTA ~ 16.908 Sec. 26. No of Antennas Working(Fringing) :27 27. Name of Non-Working Antennas (with reason for each) : C00 : Painting C03 : Painting C12 : C12 LO1 unlock 28. Note for Backup :-- 29. Start and End Time of Obs.(IST): 15:30 - 03:15 30. ONLINE Machine : Lenyadri 31. Comments (During Observations) : 15:30 : Started setup for 19_026. 15:40 : Started power eq on Src. : IF equilised @ 256 counts : BB gain equilised @ 300counts. 15:50 : Started scan on 3C286 for 20mins. 16:16 : Started cmd file. /odisk/gtac/cmd/19_026/obs.cmd 17:30 : C03 released for obs. 18:30 : C00 released 23:21 : MSEB power failure. 23:45 : Started observation with Central square + W01+E02 antennas. 23:50 : C02 servo problem. 23:50 : Started scan on 2052+365 for 5mins. 23:56 : Started scan on SH2-112 for 35mins. 23:58 : C04 servo problem. 00:34 : Started scan on 2052+365 for 5mins. 00:47 : Started scan on 3C147. 01:20 : Scan stopped. ELECTRICAL maintenance. 02:35 : Electrical power resume. W05 servo timeout 02:55 : Started scan on 3C147 for 20mins. 03:15 : Observation stopped.